function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Elie, Ntirenganya & Yajin, Li & Yanlan, Xie & Yanli, Zhou', 1],
    ['Friis, Else Marie & Crane, Peter R. & Pedersen, Kaj Raunsgaard', 68],
    ['He, Li-Hong & Zhao, Xin-Lei & Yu, Jing & Zhang, Zhao', 1],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 1],
    ['Lu, Yong-Bin & Huang, Zhang-Ping & Qin, Xin-Mei & Zhang, Qiang', 1],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 2],
    ['Schlechter, Fridrich Richard Rudolf', 1],
    ['Smith, Albert Charles', 1],
    ['Verdcourt, Bernard', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=78)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);